You don't have to have a large market in order to have a profitable business. That said, the market for 3D printers at home is larger than many assume, especial

You don't have to have a large market in order to have a profitable business. That said, the market for 3D printers at home is larger than many assume, especially as printers get closer to being simple one-button-push kinds of things. They will probably never be the sort of thing that exists in every home, but they could very well be the sort of thing that exists in every home workshop.